TW201235731A - Wide angle photographic lens assembly - Google Patents

Abstract

A wide angle photographic lens assembly includes, in order from an object side to an image side, a first lens element with negative refractive power having a convex object-side surface and a concave image-side surface, a second lens element with positive refractive power having a concave object-side surface and a convex image-side surface, a third lens element, a fourth lens element with positive refractive power, a fifth lens element with negative refractive power, and a sixth lens element with positive refractive power. By adjusting the relationship among the above-mentioned lens elements, the wide angle photographic lens assembly can provide a wide-view angle and correct the aberration in order to obtain superior imaging quality.

Description

201235731 VI. Description of the Invention: [Technical Field] The present invention relates to a photographic lens, particularly to a wide-angle photographic lens having a large angle of view and miniaturized. [Prior Art] In recent years, the application range of optical camera lenses has become more and more extensive, especially in mobile phone cameras, computer network cameras, automotive lenses, security image monitoring and electronic φ entertainment industries, and general camera lenses. Image sensing components are nothing more than two types of Charge Coupled Device (CCD) or Complementary Metal-Oxide Semiconductor Sensor (CMOS Sensor), and due to the advanced process technology, The area of the pixel of the image sensing device is reduced, and the camera lens is gradually developing in the field of high-quality and miniaturization. Therefore, how to produce a good image quality on a small image sensing element with a miniaturized camera lens is the main cause of the industry. The direction of research and development. # Generally used in automotive, video surveillance and electronic entertainment devices, the camera lens is required to have a large angle of view for the lens. The large-angle camera lens that I have seen, the multi-collision lens is a negative refractive power, and the rear group lens is a configuration material of the positive lining force, which constitutes the structure of the anti-photographing telephoto), thereby obtaining the characteristics of the wide angle of view. For example, as shown in U.S. Patent No. 7'_55, the pre-harvest lens has a negative refractive power, and the rear group lens has a positive refractive power, so that a larger field of view can be obtained. Angle, but since the rear group lens is only equipped with one lens, it is difficult to make a good correction to the system aberration 201235731. Furthermore, it is expected that the high-resolution wide-angle optical lens set will become a trend in the car, and it is urgent to have a wide-view image and high image quality without causing the total length of the lens. A long wide-angle photographic lens. [Invention] In order to meet the market demand and improve the problems existing in the prior art, the present invention provides a wide-angle photographic lens, which improves the imaging quality of the wide-angle photographic lens and provides a sufficient angle of view. Provides a miniature, wide-angle photographic lens. According to the invention, the wide-angle photographic lens of the embodiment includes, in order from the object side to the image side of the optical axis, a first lens having a negative force, a first lens having a positive force, and a third A lens, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power, and a sixth lens having a positive refractive power. The first lens has a convex side surface and a concave side image side surface. The second lens has a side surface that is a concave surface and a second lens image side surface that is a convex surface. Wherein the 'wide-angle photographic lens has a focal length f, the second lens has a focal length & the sixth lens has -_f6 ' and the wide-format photographic lens satisfies the following formula: (Formula 1): 0&lt;f/f2&lt;l.〇 ; and (Formula 2): 〇.35&lt;f/f6&lt;〇.95. According to the present invention, the wide-circle photographic lens of the other embodiment includes a front mirror group and a rear mirror group from the object side to the image of the optical axis. The front lens group includes a first lens having a negative refractive power and a second lens having a positive refractive power. The first lens has a side surface of the 201235731 convex surface and an image side surface which is a concave surface. The second lens has a concave side and a convex side. The rear mirror group includes a third lens, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power, and a sixth lens having a positive refractive power. Wherein, on the optical axis, the wide-angle photographic lens further includes an aperture, and the image side of the second lens has a distance Dr4s between the side and the aperture, and the mirror-to-mirror distance τ is between the first lens and the second lens. The wide-angle photographic lens has a focal length f, the front lens group has _ a focal length L ' and the wide-angle photographic lens satisfies the following formula: (Formula 3): Dr4S/T] 2 &lt;0.4; and (Formula 4): 〇 &lt;f /f12&lt;1.2. According to the wide viewing angle photographic lens disclosed in the present invention, the first lens having a negative refractive power can be advantageous for expanding the angle of view of the wide viewing angle photographic lens. The second lens with positive refractive power provides the partial refractive power required for the wide-angle lens, which shortens the overall length of the overall light. When the second lens has a positive refractive power, it helps to shorten the overall optical total length. When the second lens has a negative refractive power, it helps to correct the aberration. The fourth lens with positive refractive power provides a wide-view (four) lens lens to help reduce the overall optical total length. The fifth lens with the rider's power can be corrected with wide viewing angle and lens axis aberration. The sixth lens with positive riding force can help reduce the sensitivity of wide-angle photographic lenses. In addition, when the object side surface of the first lens is convex and the image side surface is concave, it can help to expand the viewing angle of the wide viewing mirror, and the refractive index of the human light is moderated to avoid excessive increase of the aberration. Furthermore, in the expansion of the wide view (4) head of the field of view 201235731 angle and the correction of the aberration towel to achieve a good balance. When the object side surface of the second lens is a concave surface and the j-plane is a convex surface, it can contribute to correcting the astigmatism of the wide-angle photographic lens. When the image side of the fourth lens is convex, the positive refractive power of the fourth lens can be effectively enhanced to shorten the total length of the wide-angle photographic lens. When the side surface of the fifth lens is concave, it can contribute to the high-order aberration of the JL wide-viewing lens. When the image side of the sixth lens is convex, the total length of the wide-angle photographic lens can be effectively shortened. When the above (Formula 1) is satisfied, the first lens has a suitable positive refractive power to effectively reduce the total length of the mirror. When the above (Formula 2) is satisfied, the sixth lens-has. Appropriate positive refractive power is used to effectively distribute the wide angle of view of the lion's positive refractive power, reducing the sensitivity of wide-angle photographic lenses. When the above (Equation 3) is satisfied, the front mirror group (ie, the 帛 lens and the second lens) and the aperture have an appropriate position to obtain the maximum angle of view without making the wide viewing angle __ length too long. . When the above (Equation 4) is satisfied, the front mirror group has a suitable refractive power to effectively shorten the total length of the wide viewing angle lens. The above description of the invention (4) and the description of the implementation of the town is used to explain the scope of the present invention. [Embodiment] According to the wide-angle photographic lens disclosed in the present invention, the "first recognition map" is first used as a cow example; ^^^5 has the same lens composition and configuration relationship in each of the embodiments" It is to be noted that each of the embodiments has a side-viewing mirror-like formula, and other differences will be described in detail in the respective embodiments. 201235731, brother 1A", for example, the wide-angle lens ι〇 from the object side of the optical axis to the image side (such as "1A" from left to right) sequentially includes: a first lens with a negative refractive power 110, comprising a convex first surface of the first lens object m and a concave first lens image side surface 112. The material of the first lens no is glass, and the first lens side 111 and the first lens image side 112 are spherical. The second lens 12'' having a positive refractive power includes a concave second lens side surface 121 and a convex second lens image side surface 122. The second lens 120 is made of Lu plastic and the first lens side 121 and the second lens side 122 are aspherical. A second lens 130 includes a third lens side 131 and a third lens image side 132. The material of the third lens 130 is plastic, and the third lens side 131 and the third lens side 1; 32 are all aspherical. f Note that the #third lens (4), when it has a positive refractive power, helps to shorten the overall optical total length. It helps to correct aberrations when the third lens 13 〇 has a negative refractive power. A fourth lens 140 having a positive refractive power includes a fourth lens side 141 and a convex fourth lens side 142. The material of the fourth lens 14 is plastic, and the fourth lens side 141 and the fourth lens image side 142 are all aspherical. A fifth lens 150 having a negative refractive power includes a concave fifth surface side 151 and a fifth lens image side 152. The material of the fifth lens 150 is plastic, and the fifth lens side 151 and the fifth lens image side 152 are all aspherical. A sixth lens 160 having a positive refractive power includes a sixth lens side i6i and a sixth lens image side 162. The material of the sixth lens 160 is plastic, and the sixth lens side 161 and the sixth lens image side 62 are all aspherical. 201235731 It should be noted that at least the third lens bo, the fourth lens 14 〇 and the sixth lens 16 为 are - lenticular lenses, which can contribute to the total optical total length of the new rim. Furthermore, the wide-angle photographic lens 10 further includes an aperture 100, and the aperture 1 〇〇 is optionally disposed at a brightness of the second lens 12 〇 and the third _ 13 G H miscellaneous wide-angle photographic lens 10. In addition, the wide-angle photographic lens 10 sequentially includes an infrared ray filter 180, a cover glass 191, an imaging surface 190, and an image sensing element 192 after the sixth lens 16A. The image sensing element 192 is disposed on the imaging surface 119. The wide-angle photographic lens 10 according to the present invention can satisfy the following formula: (Formula 1): 〇&lt;f/f2&lt;1 〇(Formula 2): 〇.35&lt;f/f6&lt;〇.95 (Formula 3) : Dr4S/T12&lt;0.4 (Formula 4): 〇&lt;f/fl2&lt;12 where, on the optical axis, f is the focal length of the wide-angle photographic lens 1 ,, the color is the focal length of the second lens 120, & The focal length of the six lenses 160. Dr4S is the distance between the second lens image side surface 122 and the aperture 1〇〇, and the mirror spacing 嗝2 between the first lens 11〇 and the second lens 12〇 is a front lens group (ie, the first lens 11〇 The focal length of the second lens, for example. When the above (formula 丨) is satisfied, the second lens 120 is made to have a suitable positive refractive power to effectively reduce the total length of the wide-angle photographic lens 1 。. When the above (Formula 2) is satisfied, the sixth lens 16A has a suitable positive refractive power to effectively distribute the positive refractive power of the wide-angle photographic lens 10, and the sensitivity is lowered, and the preferred range of (Formula 2) is: 201235731 0·4<呢&lt;0.7. When the above formula (Equation 3) is satisfied, the front mirror group (ie, the first lens 11 〇 and the second lens 120) and the aperture 1 〇〇 are respectively disposed at appropriate positions so as not to make the total length of the wide-angle photographic lens 10 Under the syllabus, Lin's most awkward field of view, and (Formula 3), the preferred range is: Dr4S/T]2&lt;〇2. When the above (Equation 4) is satisfied, the front lens group (i.e., the first lens 110 and the second lens 12A) has a suitable refractive power to effectively shorten the total length of the wide-angle photographic lens 10. Furthermore, the wide-angle photographic lens 10 can at least satisfy one of the following formulas: (Equation 5): T23/CT2 &lt; 0.4 (Equation 6): -l.3 &lt;f/f3&lt;0.2 (Equation 7): -i .〇&lt;R9/f&lt;_〇4 (Equation 8): 〇(Equation 9): Wind&gt;1.72 (Equation 10): 〇.9&lt;R8/R9&lt; 1.7 (Equation 11): 28&lt;V6-V5&lt 45 (Equation 12): ] (Equation 13): imgH/f&gt;i.2 (Equation 14): HF 〇 V &gt; 75 wherein, on the optical axis, D is the second lens 12 〇 and the third lens 130 The gate distance between the gates (ie, the distance from the first lens image side surface 122 to the third lens object side surface 131), CT2 is the thickness of the second lens 120 (ie, the second lens object side surface 121 to the second lens image side surface 122). the distance). f] is the focal length of the first lens 丨1〇, the color is the focal length of the third lens 13〇°R7 is the radius of curvature of the fourth lens object side surface 141, and the % is the radius of curvature of the fourth lens 201235731 image side surface 142, r9 is the first The radius of curvature of the five lens side 151. Vs is the dispersion coefficient of the fifth lens 150, and % is the dispersion coefficient of the sixth lens 16A. ImgH is half the diagonal of the effective photosensitive area of the image sensing element, which is half of the maximum viewing angle of the wide-angle photographic lens 10. When the formula (Equation 5) is satisfied, the wide-angle photographic lens 10 has a suitable thickness of the second lens 120 and a mirror spacing between the second lens 12 〇 and the third wei 13 ,, which can effectively correct the wide-view illuminating lens The spherical aberration of 1G, and the preferred range of (Formula 5) is: T23/CT2&lt;0.2. When the formula (Equation 6) is satisfied, the third lens 13A has a suitable refractive power, so that the wide-angle photographic lens 10 can correct the aberration or shorten the total optical length for the demand, and (Equation 6) The preferred range is: _ 丨力 <呢 <〇. When (Equation 7) is satisfied, the aberration can be effectively corrected. When satisfied (the formula phantom, the fourth lens (10) read fine (4) fine blue 142 has a suitable (10) plane curvature to effectively strengthen the positive refractive power, and does not make the aberration of the wide-angle photographic lens 10 too large. When the angle of view is large, the image side 142 of the four-lens 140 and the fifth side of the fifth through-hole (5) have a suitable lens curvature to effectively shorten the mirror spacing (ie, the fourth through). The total length of the mirror side (4). When the photographic lens 10 is the first = foot (formula η), it can be used to correct the chromatic aberration. In the satisfaction (the formula meets the satisfaction of the 合 贞 , 骑 骑 骑 骑 骑 骑 骑 骑 骑 骑 骑 骑 骑 骑&quot;Day, can help maintain the wide-angle lens ίο miniaturization, and it is contained in the portable electronic products. In the case of the formula (formula Η), it can provide the season 12 201235731 large field of view.赝: 伊. If all the lenses in the rJT can be made of glass or plastic, then the brightness can be increased. If the lens is made of plastic, the production cost can be effectively reduced. The a surface can be aspherical. The aspheric surface can be easily made into a sphere other than the sphere (acquired (four), (four) Wei, (four) The subtraction of the aberration is to effectively reduce the total length of the wide-angle photographic lens.

In the case of 10, if the surface of the lens is convex, if the surface of the lens is concave, it means that the lens is further convex, and the lens of the wide viewing angle indicates that the surface of the lens is convex at the paraxial surface; the surface is concave at the proximal side. In addition, in order to meet the needs of use, it can be inserted into the V-ray in the wide-angle lens (1), and the imaging size of the object is high. The aperture may be a Glare stop or a field stop (field s), but is not limited thereto. 13 201235731 In the embodiment, i may be but not limited to 4, 6, 8, 1Q. 12. First Embodiment As shown in FIG. 1A, the structure of the first embodiment of the wide-angle photographic lens according to the present invention is shown. In this embodiment, the wide view is used. The wavelength of the light received by the touch lens U) is 587.6 café, (4). However, the length of the inspection can be adjusted according to the actual demand, and the value of the inspection on the sand is limited. The first lens 110 of the present invention has a 贞 refractive power 'the second lens has a positive refractive power', the second lens 130 has a positive refractive power, and the fourth lens 14 〇 has a positive refractive power. The fifth lens 150 has a negative refractive power. The six lens 16 turns have a positive refractive power. The first lens image side surface m is a convex surface, and the first lens image side surface 112 is a concave surface. The second lens side surface 121 is a concave surface, and the second lens image side surface 122 is a convex surface. The fourth lens image side surface 142 is a convex surface. The fifth lens side surface 151 is a concave surface. The sixth lens image side surface 162 is convex. Further, the fourth lens 14A and the sixth lens 16 are both lenticular lenses. The details of the wide-angle photographic lens 1 如 are shown in the following "Table 1_1": The focal length of the first embodiment (f > =1.16_, the aperture value (Fn 〇) = 2 〇 5, half of the maximum angle of view (HF 〇 V) =90.1 deg. Surface # Object radius of curvature (mm) Face distance (mm) Material refractive index dispersion coefficient Focal length (mm) 0 Subject plane infinite 1 First lens 10.051 1.040 Glass 1.804 46.6 -4.98 2 2.732 2.143 201235731 3 Second Lens - 4.259400 3.877 Plastic 1.634 23.8 3.90 4 ----, -2.115310 0.100 5 Aperture '^--- Plane 0.172 6 Third lens - 1.672960 1,097 Plastic 1.544 55.9 40.82 7 — -1.915270 0.100 8 Fourth lens 3.952800 1.127 Plastic 1.544 55.9 1.95 9 -1.304470 0.100 10 Fifth lens ------ -0.956200 0.482 Plastic 1.634 23.8 -1.27 11 6.206900 0.100 12 Sixth lens 5.247000 1.562 Plastic 1.544 55.9 2.21 13 ---- -1.397330 0.500 14 &amp; Light sheet - a plane 0.300 glass 1.516 64.1 a 15 plane 0.500 16 protective glass plane 0.400 glass 1.516 64.1 - 17 plane 0.396 18 A plane plane note: the reference wavelength is d-line 587.6 nm. Table 1-1 In addition, the first lens n〇 of the embodiment is a spherical lens (ie, the first lens object side surface 111 and the first lens image side surface 112 are both spherical surfaces). The second lens 12 〇 to the sixth lens 160 may both be aspherical lenses, and may conform to, but not limited to, the aspherical surface of the above (& ASP). For the parameters of each aspherical surface, please refer to the following "Table _2" ·· 15 201235731 Aspheric Coefficients Surface # 3 4 6 7 8 k = -1.83603E+01 -1.26244E+01 -4.51463E-01 7.26299E-01 -1.89351E+01 -1.10912E-02 - 5.01510E-02 1.61062E-01 -6.93195E-02 -7.59803E-02 a6 = 1.73853E-03 6.71058E-02 -2.69888E-01 3.76450E-02 -1.08313E-03 a8 = -1.02019E-04 - 4.44420E-02 3.14872E-01 -4.51197E-03 -1.26653E-03 Ai〇= 8.72225E-07 1.14289E-02 -2.07206E-01 7.87134E-03 1.44193E-03 Ai2 = -1.01587E-25 - 1.01617E-25 -1.01617E-25 -1.01617E-25 -1.01617E-25 Surface # 9 10 11 12 13 k = -3.56827E+00 -1.86678E+00 4.08173E+00 -1.04401E+00 -1.84160E +00 A4 = -5.01832E-02 3.53435E-02 1.98777E-02 7 .39656E-03 1.09471E-02 a6 = -1.96329E-02 -1.94252E-03 2.53019E-04 -1.71646E-03 3.19449E-03 a8 = 6.74736E-03 -7.8442 IE-03 -1.56275E-03 1.47697 E-03 -1.81703E-03 A) 〇 = -1.67452E-03 2.07200E-03 1.24234E-04 -3.42319E-04 5.29497E-04 Ai2 = -1.01617E-25 -1.01618E-25 — — -1.01620 E-25 Table 1-2 In addition, the contents described in "Table 丨3" can be derived from "Table 14": First embodiment Focal length (mm) 1.16 f/f6 0.52 Aperture value 2.05 f/fn 0.34 Maximum Half of the angle of view (deg.) 90.10 Dr4S/T, 2 0.05 N, 1.80 T23/CT2 0.07 v6-v5 32.1 (R7+R8)/(R7-R8) 0.50 f/f, -0.23 R9/f -0.83 f/ F2 0.30 R8/R9 1.36 201235731 f/f3 0.03 ImgH/f 1.75 ------ Table 1-3 As shown in Table 1-3, f/f2=0.30, which conforms to the range of (Formula 1). f/f6=〇.52, in accordance with the range of (Formula 2). Di^S/TfO.OS, in accordance with (Formula 3) range. Qiu 2 = 〇 · 34, in accordance with the scope of (Formula 4). T23/CT2=0.07, in accordance with the range of (Formula 5). f/f3=0.03 ‘conforms to (formula 6) range. R9/fM).83 ‘ matches the range of (Formula 7). (R7+R8)/(R7-R8)=〇.50, in accordance with Lu (Equation 8). ^=1.80, in accordance with (Formula 9) range. Rs/R9 = 1.36, in accordance with (Formula 10) range. V6-V5=32·b meets the range of (Formula 11). ^=-0.23, in accordance with (Formula 12) range. ImgH/f = 1.75 mm (millimeter, mm), in accordance with (Formula 13) range. HFOV = 90.10 degrees (degree, deg.), in accordance with the range of (Formula 14). Please refer to the "Longitudinal Spherical Aberration" curve of the wide-angle photographic lens disclosed in "1A" as shown in "Fig. 1B" for the light of wavelengths 486_lnm, 587.6nmm, and 656·3ηηι. Among them, the longitudinal spherical aberration curve of the wavelength of 486.lnm in the wide-angle photographic lens 10 is the solid line L in the "picture" plane. The longitudinal spherical aberration curve of the light having a wavelength of 587.6 nm in the wide-angle photographic lens is a broken line 中 in the "first map" plane. The longitudinal spherical aberration curve of the light having a wavelength of 656.3 mn in the wide-angle photographic lens is the dotted line N in the "Phase 1B" drawing. The abscissa is the focus position (mm) and the ordinate is the normalized 7 entrance pupil or aperture radius. That is to say, from the longitudinal spherical aberration curve, it can be seen that the paraxial light (the ordinate is close to 0) and the edge light (the ordinate is close to 1) respectively enter the wide-angle photographic lens 10 after the focus position difference, the above-mentioned paraxial light and The edge light is parallel to the optical axis. From 17 201235731, "1B", it can be seen that the wide-angle photographic lens of the present embodiment is different from the light of the wavelength of 486.1 nm, 587.6 nm or 656.3 nm, and the longitudinal spherical aberration caused by the wide-angle photographic lens 1 皆- 〇. 〇 25mm to 0.0mm. In the contents of the second to seventh embodiments to be described later, "2B", "3B", "4B", "5B", "6B" and "7B" In the schematic diagram of the longitudinal spherical aberration curve, the solid line L is the longitudinal spherical aberration curve of the light with a wavelength of 486.1 nm, and the vertical spherical aberration curve of the light of the wavelength of the 587 611111 is the dotted line. The point line N is the wavelength of 656.3. The longitudinal spherical aberration curve of the light of nm is a simple one, so it is no longer reported one by one. Referring to the "1C", the astigmatism field curve of the wide-angle photographic lens disclosed in "1A" is shown as a light at a wavelength of 587.6 nm. Among them, the astigmatic field curve of the meridian (Tangentiaip^e) is the dotted line τ in the "ic map" plane. The astigmatic field curve of the Sagittal Plane is the real 'S' in the "1c" ® face. The abscissa is the position (mm) of the focus, and the ordinate may be the image height (mm) or the half angle HFOV (deg). In the present embodiment, the ordinate is a half angle of view. That is to say, from the astigmatic field curvature curve, the difference in the focal position caused by the difference in curvature between the meridional plane and the sagittal plane can be seen. As can be seen from the "figure", the astigmatic field curvature of the meridional plane generated by the light incident at a wavelength of 587.6 nm is between 0.03 mm and the astigmatic field curvature of the sagittal plane is between -0.05 mm and 〇〇. Between mm. In the contents of the second to seventh embodiments to be described later, "2C", "3C", "4C", "5C", "6C" and "7C" In the 201235731 astigmatism field curve diagram, the solid line s represented by the astigmatic field curvature curve of the sagittal plane, and the dotted line T is the astigmatic field curve of the meridional plane, which is a simple space, so it will not be described one by one. Please refer to the distortion diagram (Dist〇rti〇n) of the wide-angle photographic lens disclosed in "1A" as shown in "1D". Wherein, the horizontal axis is the distortion rate (%), and the vertical axis may be the image height (mm) or the half angle HFOV (deg). In the embodiment, the vertical axis is the half angle of view jjpovyeg). That is, φ says that the distortion curve G shows the difference in distortion rate caused by different image heights. As can be seen from "1D", the distortion rate of the light having a wavelength of 587.6 nm incident on the wide-angle lens 1 is between -100% and 〇%. As shown in "1B to id", according to the first embodiment described above, the wide-angle photographic lens 1 有效 can effectively achieve a good balance between correcting various aberrations and obtaining a large angle of view. . In the contents of the first to third embodiments to be described later, "21st", "3D", "4D", "5D", "6D" and "7D" The distortion curve of the graph is not intended to be 'the solid line G of the wavelength is the distortion curve of the wavelength hunger (four) light, which is a simple space, so it will not be described one by one. And Zhuang Si's flaw, the distortion curve and the astigmatism field of the wide-angle photographic lens, the distortion curve and the astigmatic field curvature curve of the wavelength of 486.1 nm and 656.3 nm incident on the wide-angle photographic lens 10 respectively. In order to avoid the confusion of the "1C map" and the "1D map", the wavelength of 486 is not plotted in the "graph" and "ID map". The light of lnm and 656.3 nm is incident on the wide viewing angle. The distortion curve respectively generated by the f base 1G is the same as the astigmatic field curvature 19 201235731 line 'the second embodiment to the seventh embodiment below. &lt;Second Embodiment&gt; Referring to Fig. 2A, there is shown a schematic structural view of a second embodiment of a wide viewing angle lens according to the present invention. The specific embodiment is substantially the same as the first embodiment, and the components described in the second embodiment are the same as those described in the first embodiment, and the component numbers are all represented by 2 as the beginning of the hundred digits. Have the same function or structure, in order to simplify the description, the following only explains the differences, the rest are not repeated. In the present embodiment, the wavelength of the light received by the wide-angle photographic lens 2 is exemplified by 587.6 nm. However, the above wavelength can be adjusted according to actual needs, and is not limited to the above-mentioned wavelength value.

The first lens 210 has a negative refractive power, the second lens 220 has a positive refractive power, the second lens 230 has a negative refractive power, the fourth lens 240 has a positive refractive power, and the fifth lens 250 has a negative refractive power. The sixth lens 26A has a positive refractive power. The first lens object side surface 211 is a convex surface, and the first lens image side surface 212 is a concave surface. The second lens object side surface 221 is a concave surface, and the second lens image side surface 222 is a convex surface. The fourth lens image side surface 242 is a convex surface, the fifth lens object side surface 251 is a concave surface, and the sixth lens image side surface 262 is a convex surface. Further, the 'fourth lens 24' and the sixth lens system are both lenticular lenses. The details of the wide-angle photographic lens 20 are as follows: "Table n: --------" 1 small · Second embodiment

20 201235731

Focal length (f) = 1.42mm, aperture value (Fno) = 2.50, half of maximum viewing angle (HFOV) = 80.1 deg. Surface # Object radius of curvature (mm) Face spacing (mm) Material refractive index dispersion coefficient Focal length (mm) 0 The object plane is infinite 1. The first lens 12.124 1.170 Glass 1.804 46.6 -4.14 2 2.500 2.449 3 Second lens - 5.678500 2.900 Plastic 1.621 24.4 2.44 4 -1.428990 0.100 5 Aperture plane 0.016 6 Third lens 100.000000 0.450 Plastic 1.544 55.9 -2.27 7 1.216370 0.132 8 Fourth lens 1.234090 1.113 Plastic 1.530 55.8 1.22 9 -0.936960 0.106 10 Fifth lens -0.678320 0.346 Plastic 1.633 23.4 -1.03 11 18.543100 0.285 12 Sixth lens 1.871310 1.511 Plastic 1.544 55.9 2.24 13 -2.697180 0.300 14 Infrared filtering Sheet plane 0.300 Glass 1.516 64.1 — 15 Plane 0.300 16 Protective glass plane 0.400 Glass 1.516 64.1 —— 17 Plane 0.303 18 Imaging surface plane — 21 201235731

Table 2-1 Further, the first lens 210 of the present embodiment is a spherical lens. The second lens 22 〇 to the sixth lens 260 may both be non-sense lenses, and may conform to the aspheric surface that is thinner than the above (Formula ASP). For the parameters of each aspherical surface, please refer to the following "Table 2-2: Aspherical Coefficients (Aspheric Coefficients) Surface # 3 4 6 7 8 k = -2.2293 0E+00 -U1495E+01 -8.00000E+01 -1.48938E+01 -9.67896E+00 A4 = -1.48254E-02 3.80500E-02 3.21876E -01 -1.64771E-01 -1.15571E-01 a6 = 6.46417E-03 2.83858E-02 -2.33397E-01 9.72067E-02 -5.9260 IE-02 a8 = -6.35613E-04 -5.26089E-02 1.73257E -01 1.57970E-02 -1.38754E-01 A|〇= -6.82952E-05 2.40550E-02 -3.72079E-02 4.09259E-02 -1.57663E-01 A丨2 = -2.98794E-15 -2.96919E -15 -2.96919E-15 -2.96919E-15 -2.96919E-15 Surface # 9 10 11 12 13 k = -1.05740E+00 -1.89290E+00 1.99543E+02 -1.08437E+01 -2.17061E+01 A4 = -5.91238E-02 -8.51472E-02 5.00027E-02 2.19775E-03 -9.49479E-02 a6 = -4.77129E-02 5.42903E-02 2.43128E-02 -1.27190E-02 4.72332E-02 a8 = 7.32534E-02 7.83195E-02 -1.39712E-02 6.35827E-03 -1.79913E-02 Ai〇= -7.29590E-02 -2.98226E-02 -9.45365E-04 -6. 86662E-04 2.96470E-03 A12 = -2.96919E-15 -2.96919E-15 — _ -2.96919E-15 Table 2-2 In addition, from Table 2-1, you can calculate "Table 2-3" Description: Second embodiment Focal length (mm) 1.42 f/f6 0.63 22 201235731 Aperture value 2.50 f/f12 0.83 Half of maximum viewing angle (deg.) 80.10 Dr4S/T]2 0.04 Νι 1.80 T23/CT2 0.04 v6-v5 32.5 (R7+R8)/(RrR8) 0.14 f/f, -0.34 R9/f -0.48 f/f2 0.58 R8/R9 1.38 f/f3 -0.63 ImgH/f 1.42 Table 2-3 Please refer to "2B" As shown in the figure, the longitudinal spherical aberration curves of the wide-angle photographic lens disclosed in "B2A" are incident on the wavelengths of 486.1 nm, 587.6 nm, and 656.3 mn. As can be seen from "Fig. 2B", in the present embodiment, the longitudinal spherical aberration generated by the wide-angle photographic lens 20 is between _0.05 min and 0 0 mm regardless of the light receiving the wavelength of 486.1 nm, 587.6 nm or 656.3 nm. . Referring to the "2Cth diagram", the astigmatism field curve of the wide-angle photographic lens disclosed in "Fig. 2A" is incident on the light having a wavelength of 587.6 nm. It can be seen from the "2C picture" that the meridional astigmatic field curvature generated by the light having a wavelength of 5876 nm incident on the wide-angle photographic lens 2 介于 is between _〇〇5 mm and 〇〇5 mm, and the sagittal astigmatic field curvature is between -〇 〇 5mm to 0.05mm. Referring to "2D", the distortion curve of the wide-angle photographic lens disclosed in "2A" is shown as a light having a wavelength of 587.6 nm. As can be seen from the "Fig. 2D", the distortion of the light having a wavelength of 587.6 nm incident on the wide-angle photographic lens 20 is between -75% and 0%. Such as "2B to" 2D,

«J described in accordance with the second embodiment described above, the wide viewing angle disclosed by the present invention

23 S 201235731 The shadow lens 20 is effective in achieving a good balance between correcting various aberrations and obtaining a large angle of view. &lt;Third Embodiment&gt; Referring to Fig. 3A, there is shown a schematic structural view of a third embodiment of a wide viewing angle lens according to the present invention. The specific embodiment is substantially the same as the first embodiment described above, and the components described in the third embodiment are the same as those described in the first embodiment, and the components are all represented by the beginning of the 100 digits. And have the same Wei or structure, in order to simplify the lang, the following only explain the differences, the rest are not repeated. In this implementation, the wavelength range of the 3G received by the wide-spectrum lens is taken as an example. However, the above wavelength can be adjusted according to actual needs, and is not limited to the above-mentioned wavelength values. The first lens 310 of the embodiment has a negative refractive power, the second lens 32 has a positive refractive power, the third transparent has a refractive power, the first mirror has a positive refractive power, and the fifth lens 35 has a negative refractive power. The sixth lens has a positive refractive power. The first lens side surface is a convex surface, and the first lens image side surface 312 is a concave surface. The first lens side surface 321 is a concave surface, and the second lens image side surface is cut into a convex surface. The fourth lens image side surface 342 is a convex surface. The fifth lens side surface 35 is a concave surface. The sixth lens image side is convex. Further, the fourth lens_and the sixth lens are lenticular lenses. The details of the wide-angle photographic lens 30 are shown in the following table 24 201235731

The third embodiment has a focal length (f)=1.35 mm, an aperture value (Fno)=2.40, and a half of the maximum viewing angle (HFOV)=90.1 deg. Surface #object radius of curvature (mm) face distance (mm) material refractive index dispersion coefficient focal length (mm) 0 Subject plane infinite 1 First lens 11.610 1.170 Glass 1.804 46.6 -4.61 2 2.684 2.402 3 Second lens -4.058600 2.900 Plastic 1.621 24.4 1.92 4 -1.174700 0.100 5 Aperture plane 0.133 6 Third lens -1.237820 0.450 Plastic 1.544 55.9 -1.47 7 2.533880 0.100 8 Fourth lens 1.055230 1.118 Plastic 1.530 55.8 1.11 9 -0.835830 0.107 10 Fifth lens -0.696040 0.367 Plastic 1.633 23.4 -1.04 11 15.731400 0.115 12 Sixth lens 2.618440 2.259 Plastic 1.544 55.9 2.31 13 -1.689500 0.437 14 Infrared filter plane 0.300 Glass 1.516 64.1 — 15 Plane 0.326 16 Protective glass plane 0.400 Glass 1.516 64.1 — 17 Plane 0.143 25 201235731

§ The main reference wavelength is d-line 587.6 nm. Table 3-1 Further, the first lens 310 of the present embodiment is a spherical lens. The second lens 32 〇 to the sixth lens 360 may both be aspherical lenses, and may conform to, but not limited to, the aspherical surface of the above formula (Formula ASP). For the parameters of each aspherical surface, refer to the following "Table 3_2": Aspherical coefficient ( Aspheric Coefficients) Surface # 3 4 6 7 8 k = -1.12469E+00 -8.57159E+00 -2.02892E+01 -2.22429E+00 -5.94604E+00 a4= -1.23554E-02 -2.62467E-02 1.87878 E-01 -2.86449E-01 -1.10168E-01 a6 = 5.80075E-03 8.44455E-02 -2.20824E-01 -1.45821E-01 -4.05342E-02 a8 = -5.52763E-04 -7.75152E-02 -4.93497E-04 1.78735E-01 -6.52604E-02 Aio = -2.50420E-05 2.24772E-02 -1.54041E-03 -1.16315E-01 -1.61016E-01 Ai2 = 2.85396E-19 2.86140E-19 2.86140E-19 2.86140E-19 2.86140E-19 Surface # 9 10 11 12 13 k = -2.23499E+00 -2.433 82E+〇〇1.01462E+02 -2.80690E+01 -3.32964E+00 A4 = -2.88870E -03 -3.95939E-02 5.12353E-02 9.86456E-03 -3.63099E-02 a6 = -8.47161E-02 -7.23182E-03 1.59703E-03 2.33327E-03 1.20072E-02 a8 = -1.82971E- 03 1.56995E-02 -1.05066E-02 2.19647E-03 -3.63125E-03 Ai〇= -1.44949E-02 8.21342E-04 8.80870E -04 -9.13444E-04 8.57219E-04 Ai2 = 2.86140E-19 2.86140E-19 — —— 2.86140E-19 Table 3-2 ^&gt; From Table 3-1, you can calculate the table. Contents described in 3-3": Third Embodiment 26 201235731 Focal length 1.35 0.58 Aperture value 2.40 f/f.2 1.02 Half of maximum viewing angle (deg.) 90.10 Dr4S/T, 2 0.04 N, 1.80 T23/CT2 0.08 v6 -v5 32.5 (RT+RsViRT-Rg) 0.12 f/f, -0.29 R9/f -0.52 f/f2 0.70 1.20 f/f3 -0.92 ImgH/f 1.50 Table 3-3· Refer to the "Figure 3" 'The schematic diagram of the longitudinal spherical aberration curves of the wide-angle photographic lens disclosed by the light of the wavelengths of 486.1 nm, 587.6 nm, and 656.3 nm incident on the "Fig. 3A". It can be seen from "Fig. 3B" that in the present embodiment, whether the light of the receiving wavelength is 486.1 nm, 587.6 nm or 656.3 nm, the longitudinal spherical aberration caused by the wide viewing angle lens is between _0.05 mm and 〇〇2 mm. . Referring to "3C", the astigmatism field curve of the wide-angle photographic lens disclosed in Lu "3A" is incident on the light having a wavelength of 587.6 nm. It can be seen from "3C" that the meridional astigmatic field curvature generated by the light incident at a wavelength of 587.6 nm incident on the wide-angle photographic lens 3 介于 is between _〇15 faces and 〇〇1_, and the sagittal astigmatism field is between -0.1mm to 0. 〇 2mm. Referring to the "Fig. 3D", a distortion curve of the wide-angle photographic lens disclosed in Fig. 3A is shown as a light having a wavelength of 587.6 nm. As can be seen from Fig. 30, the distortion of the light having a wavelength of 587.6 nm incident on the wide-angle photographic lens 30 is between -100% and 0%. As described in "3B" to "3D" 27 201235731, according to the above second actual design, the wide viewing angle lens 30 disclosed in the present invention can effectively correct various aberrations and obtain a large angle of view. A good balance is achieved. &lt;&lt;Fourth Embodiment&gt; Referring to Fig. 4A, there is shown a schematic structural view of a fourth embodiment of a wide viewing angle lens according to the present invention. The specific embodiment is substantially the same as the first embodiment described above, and the components described in the fourth embodiment are the same as those described in the first embodiment, and the component numbers are all represented by 4 as a number, indicating that they have For the same Wei or structure, in order to simplify the description, the town only explains the differences. The rest are not repeated. In the present embodiment, the wavelength of the light received by the wide-angle photographic lens 4 is exemplified by 587.6 nm. However, the above wavelength can be adjusted according to actual needs, and is not limited to the above-mentioned wavelength value. The first lens 410 of the present embodiment has a negative refractive power, the second lens has a positive refractive power, the third lens 430 has a negative refractive power, and the fourth lens 44 has a positive refractive power. The fifth lens 450 has a negative refractive power. The six lens 46 has a positive refractive power. The 'first lens side surface 4' 1 is a convex surface, and the first lens image side surface 412 is a concave surface. The second lens object side surface 421 is a concave surface, and the second lens image side surface 422 is a convex surface. The fourth lens image side surface 442 is a convex surface. The fifth lens object side surface 451 is a concave surface. The sixth lens image side surface 462 is a convex surface. Further, the fourth lens and the sixth lens 46 are both lenticular lenses. The details of the wide-angle photographic lens 40 are shown in the following "Table": 28 201235731

The fourth embodiment has a focal length (f) = 0.84 mm, an aperture value (Fno) = 2.30, and a maximum viewing angle of half (HFOV) = 80.1 deg. Surface #object radius of curvature (mm) face distance (mm) material refractive index dispersion coefficient focal length (mm) 0 Subject plane infinite 1 First lens 10.789 1.170 Glass 1.804 46.6 -4.32 2 2.500 2.019 3 Second lens -3.816000 2.900 Plastic 1.621 24.4 3.53 4 -1.827830 0.273 5 Aperture plane 0.100 6 Third lens - 1.675270 0.450 Plastic 1.544 55.9 -5.01 7 -4.958600 0.100 8 Fourth lens 4.010000 1.207 Plastic 1.530 55.8 0.99 9 -0.541760 0.100 10 Fifth lens -0.424290 0.331 Plastic 1.633 23.4 -0.92 11 -2.000000 0.100 12 Sixth lens 12.623000 1.634 Plastic 1.544 55.9 1.71 13 - 0.957920 0.500 14 Infrared filter plane 0.300 Glass 1.516 64.1 — 15 Plane 0.500 16 Protective glass plane 0.400 Glass 1.516 64.1 — 17 Plane 0.100 29 201235731 18 Imaging surface plane — ----! Note. The reference wavelength is d-line587.6nm · — _ Table 4-1 In addition, the first lens 410 of the present embodiment It is a spherical lens. Each of the second lens 42 〇 to the sixth lens 460 may be an aspherical lens, and may conform to, but is not limited to, the aspherical surface of the above formula (Formula ASP). For the parameters of each aspherical surface, refer to the following “Table 4_2”: aspherical coefficient ( Aspheric Coefficients) Surface # 3 4 6 7 8 k = -8.00000E+01 -1.00585E+01 -6.28176E+00 -8.00000E+01 1.40569E+01 A4 = -1.37533E-02 -4.63730E-02 5.11768E -01 1.67891E-01 -1.12390E-01 a6 = 1.56949E-03 5.11549E-02 -2.40985E+00 -2.64423E-02 -3.01364E-02 a8 = 4.67020E-05 -2.94192E-02 9.02918E+ 00 1.48329E-02 5.37286E-02 Aio = -1.13715E-05 7.00815E-03 -1.33501E+01 -9.95188E-02 -9.88267E-02 Ai2 = -3.83463E-21 4.48636E-22 4.48636E-22 4.48636E-22 4.48636E-22 Surface # 9 10 11 12 13 k = -3.57711E+00 -2.97456E+00 -6.24986E+01 1.17150E+01 -1.74103E+00 A4 = -2.34700E-01 -4.24264 E-02 8.76195E-02 2.56923E-02 4.86330E-02 a6 = -6.04961E-03 -3.3065 IE-02 -1.18629E-02 -5.23360E-03 -1.21468E-02 a8 = 3.17274E-02 -1.19475 E-02 -5.75497E-03 2.44768E-03 -4.14242E-03 A]〇= -3.11467E-02 2.21304E-02 1.66698E-04 - 3.95432E-04 2.07253E-03 A]2 = 4.48636E-22 4.48636E-22 — — 4.4863 6E-22 Table 4-2 In addition, 'from Table 4-1' can be used to calculate the “Table 4_3” Contents: Fourth Embodiment 30 201235731 Focal length (mm) 0.84 f/f6 0.49 Aperture value 2.30 f/fl2 0.26 Half of maximum viewing angle (deg.) 80.10 Dr4S/T12 0.14 N, 1.80 T23/CT2 0.13 v6-v5 32.5 (R7 +Re)/(R7-R8) 0.76 f/fi -0.19 R9/f -0.51 f/f2 &quot; 0.24 R8/R9 1.28 f/f3 -0.17 ImgH/f 2.41 Table 4-3 Please refer to "4B" As shown in the figure, the longitudinal spherical aberration curves of the wide-angle photographic lens disclosed in "Athlet 4A" are incident on the wavelengths of 486", 587 6 nm, and 656.3 mn. As can be seen from Fig. 4B, in the present embodiment, the longitudinal spherical aberration generated by the wide viewing angle lens 40 is between 〇25 mm and 0.04 mm regardless of the light receiving the wavelength of 486.1 nm, 587.6 nm or 656.3 nm. Further, referring to "Fig. 4C", it is a schematic diagram of the astigmatic field curvature curve of the wide-angle photographic lens disclosed in Fig. 4A, which is a light having a wavelength of 587 6 nm. It can be seen from Fig. 4C that the meridional astigmatic field curvature generated by the light incident at a wavelength of 5876 nm incident on the wide-angle photographic lens 4 介于 is still between 咖1匪, and the sagittal astigmatism field curvature is between 〇.〇mm Between 05mm. The photo of the distortion of the wide-angle photographic lens, which is shown in Fig. 4A, is shown in Fig. 4D. As can be seen from the "Fig. 4D", the distortion of the light having a wavelength of 587.6 nm incident on the wide viewing angle is between 75% and 〇%. As described in "Picture 4B" to "4D" 31 201235731, according to the above-mentioned fourth actual closing, the wide-angle photographic lens disclosed in this issue can greatly correct the large field of view of each difference scale. The corners are well balanced. &lt;Fifth Embodiment&gt; Referring to Fig. 5A, it is a fifth real-structural display of the wide-angle view lens according to the present invention. The specific financial formula and the first embodiment are substantially the same, and the fifth embodiment is the same as the one described in the first example, and the component numbers are all represented by a hundred digits. The basins have the same function or structure. For the sake of simplification of the description, the following only explains the differences. The rest are not repeated. In the present embodiment, the wavelength of the light received by the wide-angle photographic lens 5Q is taken as an example of nm. However, the above-mentioned wavelength can be adjusted according to actual needs, and is not limited to the above-mentioned wavelength value. The first lens 510 of the embodiment has a f-bend, a buckling force, the second lens 520 has a positive refractive power, the third lens 530 has a negative force, and a refractive power, and the fourth lens 540 has a positive The refractive power, the fifth lens 550 has a negative refractive power, and the second lens 560 has a positive refractive power. The first lens object side surface 511 is a convex surface, and the first lens image side surface 512 is a concave surface. The second lens object side surface 521 is a concave surface, and the second reading is a convex surface of the tooth mirror image side surface 522. The fourth lens image side surface 542 is a convex surface. The fifth lens object side surface 551 is a concave surface. The sixth lens image side surface 562 is convex. Further, the fourth through lens 540 and the sixth lens leakage system are both lenticular lenses. The details of the wide-angle photographic lens 50 are shown in the following table... 32 201235731

The fifth embodiment has a focal length (f)=0.97 mm, an aperture value (Fno)=2.10, and a half of the maximum viewing angle (HFOV)=90.1 deg. Surface #object radius of curvature (mm) face distance (mm) material refractive index dispersion coefficient focal length (mm) 0 The plane of the object is infinite 1 First lens 9.958 1.170 Glass 1.804 46.6 -4.81 2 2.638 1.933 3 Second lens -5.230400 3.349 Plastic 1.633 23.4 4.50 4 -2.302010 0.161 5 Aperture plane 0.129 6 Third lens - 1.254370 0.450 Plastic 1.530 55.8 -2.76 7 -9.823500 0.100 8 Fourth lens 1.352260 1.269 Plastic 1.530 55.8 1.21 9 -0.824520 0.166 10 Fifth lens -0.696180 0.367 Plastic 1.633 23.4 -1.04 11 14.213600 0.100 12 Sixth lens 5.246100 1.859 Plastic 1.544 55.9 1.66 13 -0.954450 0.506 14 Infrared filter plane 0.200 Glass 1.516 64.1 — 15 Plane 0.372 16 Protective glass plane 0.300 Glass 1.516 64.1 — 17 Plane 0.219 201235731

Further, the first lens 510 of the present embodiment is a spherical lens. The second lens to the sixth lens t may be a matte surface, and may conform to the aspheric surface of the shoe that escapes (formula ASP). For the parameters of each aspheric surface, please refer to the following "Table 2" ----- --- Aspheric Coefficients Surface # 3 4 6 7 — 8 k = -8.00000E+01 -2.24775E+01 -1.09158E+01 -7.80387E+01 -7.57097E+00 a4= -1.30880E -02 -5.34903E-02 2.20476E-02 -1.01996E-01 -3.44609E-02 a6 = 1.74284E-03 1.36078E-01 -2.72723E-02 -2.49910E-04 -1.48739E-02 a8 = -5.60568 E-05 -1.26551E-01 2.13114E-01 -6.20836E-02 -2.49418E-02 Ai〇= -2.44493E-06 4.79505E-02 -5.70982E-01 2.13204E-02 -1.78498E-02 Ai2 = 2.33217E-19 2.33965E-19 2.33965E-19 2.33965E-19 2.33965E-19 Surface # 9 10 11 12 13 k = -2.943 87E+00 -2.32809E+00 5.88958E+01 7.61182E-01 -1.86996E +00 A4 = 1.53297E-03 1.82180E-02 7.27940E-03 -5.47247E-04 1.42503E-02 a6 = -2.94583E-02 6.26640E-04 3.06996E-03 -6.81946E-03 2.03207E-03 Ag = -4.12885E-03 -2.51547E-03 -1.83382E-03 3.36934E-03 -2.42929E-03 AlO = -4.03114E-03 9.65246E-04 -4.41455E-04 -5.7434 5E-04 5.71262E-04 A12 = 2.33965E-19 2.33965E-19 — — 2.33965E-19 Table 5-2 In addition, the contents described in “Table 5-3” can be derived from “Table 5-1”. : 34 201235731 Fifth embodiment Focal length (mm) 0.97 Aperture value 2.10 Half of maximum viewing angle (deg.) 90.10 N, 1.80 v6-v5 32.5 f/f, -0.20 f/f2 0.22 _m_ -0.35

Please refer to "Fig. 5B" for the longitudinal spherical aberration curves of the wide-angle photographic lens disclosed in "5A" at the wavelengths of 486.1 nm, 587.6 nm, and 656.3 nm. It can be seen from "Fig. 5B" that in this embodiment, regardless of the light receiving wavelengths of 486.1 nm, 587.6 nm or 656.3 nm, the longitudinal spherical aberration produced by the wide-angle viewing lens 5 皆 is between _〇.〇5 mm to 0.01. Between mm. Referring to "5C", the astigmatism field curve of the wide-angle photographic lens disclosed in "5A" is incident on the light with a wavelength of 587.6 mn. It can be seen from the "5C picture" that the meridional astigmatism field curvature generated by the light incident at a wavelength of 587.6 nm is between _〇.〇5mm and 〇.〇5mm, and the variegated astigmatism field is between - 〇. 〇 5mm to 0.0mm. Please refer to the distortion curve of the wide-angle photographic lens disclosed in "5A" as shown in "5D". It can be seen from the "5D" that the light incident at a wavelength of 587.6 nm is incident on the wide-angle lens. The distortion rate generated by 2012-201231 is between _100% and 0%. As described in the fifth embodiment to the fifth embodiment, the wide viewing angle lens 50 disclosed in the present invention can be effectively obtained between correcting various aberrations and obtaining a large angle of view. A good balance. <Sixth embodiment> Referring to Fig. 6A, there is shown a schematic structural view of a sixth embodiment of a wide-angle photographic lens according to the present invention. The specific embodiment is substantially the same as the first embodiment described above, and the components described in the sixth embodiment are the same as those described in the first embodiment, and the component positions are all 6 as a hundred digits, indicating that they have For the same Wei or structure, for the sake of simplicity, the following only explains the differences. The rest are not repeated. In this implementation, the received light_wavelength of the wide-spectrum _60 is exemplified by 587.6. However, the above wavelength can be adjusted according to actual needs, and is not limited to the above-mentioned wavelength values. The first lens 610 of the present embodiment has a negative refractive power, the second lens has a positive refractive power, the third lens 630 has a positive refractive power, the fourth lens _ has a positive refractive power, and the fifth lens 650 has a negative refractive power. The lens has a positive refractive power. Wherein the first lens object side surface 611 is a convex surface, and the first lens image side surface 612 is a concave surface. The second lens object side surface 62i is a concave surface. The second lens image side surface is convex. The fourth lens image side surface 642 is a convex surface. The fifth lens side surface 651 is a concave surface. The sixth lens image side 6 is convex. Further, the fourth lens 64A and the sixth lens are both lenticular lenses. 36 201235731 The details of the wide-angle camera lens 60 are shown in the following "Table 6_1":

The sixth embodiment has a focal length (f) = 1.40 mm, an aperture value (Fno) = 2.05, and a maximum viewing angle of half (HFOV) = 90.1 deg. Surface #object radius of curvature (mm) face distance (mm) material refractive index dispersion coefficient focal length (mm) 0 Subject plane infinite 1 First lens 9.980 1.170 Glass 1.804 46.6 -4.80 2 2.638 2.030 3 Second lens -4.624600 3.197 Plastic 1.634 23.8 9.11 4 -3.257200 0.115 5 Aperture plane 0.239 6 Third lens - 1.657660 1.161 Plastic 1.535 56.3 19.37 7 -1.777510 0.100 8 Fourth lens 2.844530 1.443 Plastic 1.535 56.3 2.19 9 -1.640710 0.119 10 Fifth lens - 1.237860 0.549 Plastic 1.634 23.8 -1.45 11 4.149600 0.100 12 Sixth lens 2.559980 1.677 Plastic 1.535 56.3 2.62 13 -2.383030 0.500 14 Infrared filter plane 0.300 Glass 1.516 64.1 — 15 Plane 0.500 16 Protective glass plane 0.400 Glass 1.516 64.1 — 37 201235731

The sixth lens _ can be an aspherical surface, and can conform to the aspheric surface of the above (Formula ASP). For the parameters of each aspheric surface, please refer to the following "Table 6_2": Aspheric Coefficients Surface # 3 4 6 7 8 k = -1.27715E+01 -2.50525E+01 9.45638E-01 4.42429E-01 -4.9761 IE-01 八4 = -9.37027E-03 -4.00877E-02 1.00420E-01 -3.70307E -02 -5.30149E-02 a6 = 1.97777E-03 6.16480E-02 -1.75604E-01 -2.56870E-02 -1.58356E-02 a8 = -1.06818E-04 -6.50013E-02 1.88498E-01 3.45556E -02 1.09255E-02 Αι〇= -7.5778 IE-06 2.15978E-02 -1.58537E-01 -1.19935E-02 -1.83987E-03 A12 = -1.9801 IE-23 -1.9801 IE-23 -1.9801 IE-23 -1.9801 IE-23 -1.9801 IE-23 Surface # 9 10 11 12 13 k = -5.61387E+00 -1.91178E+00 2.50458E+00 -9.09652E-01 -6.07021E+00 a4= -6.65608E-02 2.49823E-02 2.16554E-03 -1.5351 IE-02 -1.02703E-02 a6 = 2.28613E-03 -3.02006E-03 -1.97246E-03 -9.24120E-03 3.85971E-03 a8 = 5.44174E-03 - 4.81285E-04 -1.15787E-04 4.36190E-03 -2.39172E-03 A|〇= -9.82856E-04 2.24602E-04 -1.87045E-04 -5.54381E-0 4 4.46109E-04 A12 = -1.9801 IE-23 -1.9801 IE-23 — — —1.9801 IE-23 Table 6-2 In addition, from Table 6-1, the “Table 6-3” can be derived. Content: 38 201235731 Sixth embodiment Focal length (mm) 1.40 f/f6 0.53 Aperture value 2.05 f/f.2 0.03 Half of maximum viewing angle (deg.) 90.10 Dr4S/T12 0.06 N, 1.80 T23/CT2 0.11 V6-V5 32.5 (R7+Rg)/(Ry-Rg) 0.27 f/fi -0.29 R9/f -0.88 f/f2 0.15 Rg/R^ 1.33 f/f3 0.07 ImgH/f 1.44 Table 6-3 Please refer to "Picture 6B" As shown, the longitudinal spherical aberration curves of the wide-angle photographic lens disclosed in "Phase 6A" are incident on the wavelengths of 486.1 nm, 587.6 nm, and 656.3 nm. As can be seen from Fig. 6B, in the present embodiment, the longitudinal spherical aberration caused by the wide viewing angle lens 60 is between -0.01 mm and 0.03 mm regardless of the light receiving the wavelength of 486.1 nm, 587.6 nm or 656.3 nm. .肇 Re-clearing is shown in Fig. 6C, which is a schematic diagram of the astigmatic field curvature curve of a wide-angle photographic lens disclosed in "6A" at a wavelength of 587.6 nm. It can be seen from "6C" that the meridional astigmatic field curvature generated by the light incident at a wavelength of 587.6 nm incident on the wide-angle photographic lens 60 is between _〇〇3111111 and 〇〇7 mm, and the sagittal astigmatism field curvature is between -〇 〇 3mm to 〇. 〇 3mm. 々Please refer to the “Picture 6D” for the distortion curve of the wide-angle photographic lens disclosed in “Phase 6A”. It can be seen from the "Picture 6D" that the distortion of the wavelength of 587_6 nm incident on the wide-angle camera lens 39 201235731 is between - drive and 〇%, "New Zealand" to "the first" = according to the above The fifth embodiment is designed in such a manner that the wide-angle photographic lens 60 disclosed in the present invention can effectively achieve a good balance between correcting various aberrations and obtaining a large angle of view. &lt;Seventh Embodiment&gt; The present invention is a seventh embodiment of the wide viewing angle photographic lens according to the present invention, and the specific embodiment thereof and the foregoing first embodiment are substantially The same elements are described in the seventh embodiment and the elements described in the first embodiment are the same as the element number (4) 7 as the shame number, indicating that they have the same Wei or structure, for the sake of simplicity, the following Only the differences are explained, and the rest are not repeated. In this implementation, the wavelength of the light received by the 7G of the Guangying photo is taken as an example. However, the above wavelength can be adjusted according to actual needs, and is not limited to the above wavelength values. The first lens 710 of the present embodiment has a negative refractive power, the second lens 720 has a positive refractive power, and the second lens 730 has a negative refractive power. The fourth lens 74 has a positive refractive power, and the fifth lens 750 has a negative refractive power. The sixth lens leak has a positive refractive power. Wherein the first lens side surface 711 is a convex surface, and the first lens image side surface 712 is a concave surface. The second lens side 721 is a concave surface, and the second lens is a side surface? 22 is convex. The fourth lens image side surface 742 is a convex surface. The fifth lens side 751 is a concave surface. The sixth lens image side surface 762 is convex. Further, the fourth lens 74A and the sixth lens system are both lenticular lenses. The details of the 201235731 wide viewing angle lens 70 are shown in the following "Table 7-1":

The seventh embodiment has a focal length (f) = 1.13 mm, an aperture value (Fno) = 2.40, and a half of the maximum viewing angle (HFOV) = 83.8 deg. Surface #object radius of curvature (mm) face distance (mm) material refractive index dispersion coefficient focal length (mm) 0 The plane of the object is infinite 1 First lens 10.328100 1.333 Plastic 1.530 55.8 -3.03 2 1.327360 2.790 3 Second lens - 6.156700 2.600 Plastic 1.634 23.8 2.80 4 -1.601770 0.100 5 Aperture plane -0.001 6 Third lens 38.887900 0.450 Plastic 1.544 55.9 -2.46 7 1.289170 0.110 8 Fourth lens 1.279750 1.127 Plastic 1.530 55.8 1.25 9 -0.951670 0.116 10 Fifth lens -0.704110 0.300 Plastic 1.634 23.8 -1.05 11 14.318800 0.182 12 Sixth lens 2.248490 1.417 Plastic 1.544 55.9 2.07 13 -1.763150 0.500 14 Infrared filter plane 0.300 Glass 1.516 64.1 — 15 Plane 0.500 16 Protective glass plane 0.400 Glass 1.516 64.1 —— 41 201235731

In addition, the 'the first lens to the sixth lens of the present embodiment may be an aspherical lens' and the combination is the same as the above (Formula Asp). For the parameters of each aspheric surface, please refer to the following "Table 7-2". ”: Aspheric Coefficients Surface # 1 2 3 4 k = -2.92170E+00 -5.46256E-01 -3.04097E+00 -1.37485E+01 a4= 2.46771E-05 -1.08000E-02 -1.42177 E-02 4.26228E-02 a6 = -8.03988E-06 1.91395E-03 6.55941E-03 2.68819E-02 -6.32509E-08 -4.31587E-04 -6.49959E-04 -5.52174E-02 Al〇= 3.67439 E-09 -2.09696E-05 -9.37860E-05 2.35564E-02 A12 = One - -2.98794E-15 -2.96919E-15 Surface # 6 7 8 9 k = -8.00000E+01 -1.63474E+01 - 1.09066E+01 -1.05581E+00 A4 = 3.15418E-01 -1.53147E-01 -1.12253E-01 '5.9753 IE-02 = -2.15631E-01 1.04277E-01 -6.71426E-02 -5.12557E-02 Ag = 1.91340E-01 1.03488E-02 -1.50288E-01 7.30175E-02 A)0 = -8.97827E-02 4.04185E-02 -1.39712E-01 -7.61053E-02 A12 = -2.96919E-15 - 2.96919E-15 -2.96919E-15 -2.96919E-15 Surface surface 10 11 12 13 k = -1.84531E+00 1.00000E+02 -2.00841E+01 -6.94258E+00 4 2 201235731 Table 7-2 In addition, the contents described in "Table 7-3" can be derived from "Table 7-1": The focal length of the seventh embodiment (mm;) 1.13 f/f6 0.54 Aperture value 2, 40 f /fn 0.62 Half of the maximum viewing angle (deg.) 83.80 Dr4S/T12 0.04 N, 1.53 T23/CT2 0.04 v6-v5 32.1 (R7+Rs)/(R7-R8) 0.15 f/fj -0.37 R9/f -0.63 f /f2 0.40 R8/R9 1.35 f/f3 -0.46 ImgH/f 1.85 a4= -8.58087E-02 4-697l5E-〇2 5.22071E-03 -8.12271E-02 a6 = 5.39630E-02 2.26530E-02 -1.18257 E-02 4.54733E-02 a8 = 7.44839E-02 -!-4l625E-〇2 6.20104E-03 -1.86616E-02 Αι〇= -3.76498E-02 *2.04317E-04 -8.36554E-04 2.84378E- 03 Ai2 = -2.96919E-15 — —— -2.96919E-15 Table 7-3 Please refer to “Figure 7B” for the wavelengths of 486 1 off, 587.6 nm and 656.3 nm incident on “Phase 7A”. A schematic diagram of the longitudinal spherical aberration curve of the wide-angle photographic lens disclosed. As can be seen from "Fig. 7B", in the present embodiment, regardless of the light receiving wavelengths of 486.1 nm, 587.6 nm or 656.3 nm, the longitudinal spherical aberration produced by the wide viewing angle lens 70 is between _3 mm and 〇〇2 mm. between. Please refer to the "Act 7C" for the astigmatism field curve of the wide-angle photographic lens disclosed in the light of 587.6 nm. It can be seen from Fig. 7C that the light incident at wavelength 5876 is incident on the 曲 Γ 面 像 像 场 场 〇 0 0 0 0 咖 咖 咖 : : 咖 咖 咖 咖 咖 咖 咖 咖 咖 咖 咖 咖 咖 咖 咖 咖 咖 咖 咖 咖 咖 咖 咖 咖 咖 咖 咖between. Referring to the "Picture 7D", it is a schematic diagram of the distortion curve of the wide-angle photography disclosed in the light of the wavelength of the vertical light. It can be seen from the "Fig. 7D" that the light variability of the light incident at a wavelength of 5,876 nm is different from that of the wide-angle photographic lens. Between 〇%. According to the seventh embodiment described above, the seventh aspect of the invention is designed according to the seventh embodiment described above, and the wide-angle photographic lens 7G disclosed by the present invention can be well-balanced. . - Although the preferred embodiment of the present invention is disclosed above, it is not intended to limit the invention, and the skilled artisan will be able to make some changes and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this patent shall be subject to the definition of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1A is a schematic view showing the structure of a first embodiment of a wide viewing angle photographing lens according to the present invention. Fig. 1B is a schematic diagram showing the longitudinal spherical aberration curves of the wide-angle photographic lens disclosed in Fig. 1A with wavelengths of 486, 1 nm, 587.6 nm, and 656.3 nm. Fig. 1C is a schematic diagram showing the astigmatic field curvature curve of the wide-angle photographic lens disclosed in Fig. 1A when light having a wavelength of 587.6 nm is incident. 201235731 The ID diagram is a distortion curve of a wide-angle photographic lens disclosed in Fig. 1A, which is incident on a wavelength of 587.6 nm. The second drawing is a schematic structural view of a second embodiment of the wide viewing angle photographic lens according to the present invention. The second graph is a schematic diagram of the longitudinal spherical aberration curves of the wide-angle photographic lenses disclosed in Fig. 2A, which are incident on the wavelengths of 486.1 nm, 587.6 nm, and 656.3 nm. Fig. 2C is a schematic diagram showing the astigmatic field curvature curve of the wide-angle photographic lens disclosed in Fig. 2A when the light having a wavelength of 587.6 nm is incident. Fig. 2D is a schematic diagram showing the distortion curve of a wide-angle photographic lens disclosed in Fig. 2A by light having a wavelength of 587.6 nm. Fig. 3A is a schematic view showing the structure of a third embodiment of the wide viewing angle photographing lens according to the present invention. Fig. 3B is a schematic diagram showing the longitudinal spherical aberration curves of the wide-angle photographic lenses disclosed in Fig. 3A, which are incident on the wavelengths of 486.1 nm, 587.6 nm, and 656.3 nm. Fig. 3C is a schematic diagram showing the astigmatic field curvature curve of the wide-angle photographic lens disclosed in Fig. 3A when light having a wavelength of 587.6 nm is incident. The 3C) is a schematic diagram of the distortion curve of the wide-angle photographic lens disclosed in Fig. 3A when the light having a wavelength of 587.6 nm is incident. Fig. 4A is a schematic view showing the structure of a fourth embodiment of the wide viewing angle photographing lens according to the present invention. The figure is a schematic diagram of the longitudinal spherical aberration curves of the wide-angle photographic lenses disclosed in Fig. 4A, which are incident on the wavelengths of 486.1 nm, 587.6 nm, and 656.3 nm. 45 201235731 Figure 4C is a schematic diagram of the astigmatic field curvature curve of a wide-angle photographic lens with a wavelength of 587.6 cholesteric light incident on Figure 4A. The 4D figure is a distortion curve of the wide-angle photographic lens disclosed by the wavelength of 587.6 nm # ray incident on the 4A. Fig. 5A is a schematic view showing the structure of a fifth embodiment of the wide viewing angle photographing lens according to the present invention. Fig. 5B is a schematic diagram showing the longitudinal spherical aberration curves of the wide-angle photographic lens disclosed in Fig. 5A by the light of the wavelength 働lnm, the milk 6nm and the Na 3 ship. Fig. 5C is a diagram showing the astigmatism field curve of the angle of view lens as the light beam having a wavelength of 587 6 nm is incident on the image disclosed in Fig. 5a. Fig. 5D is a schematic diagram showing the distortion curve of the wide-angle photographic lens disclosed in Fig. 5A when the light having a wavelength of 587.6 nm is incident. Fig. 6A is a schematic view showing the structure of the sixth embodiment of the wide viewing angle photographing lens according to the present invention. Fig. 6B is a schematic diagram showing the longitudinal spherical aberration curves of the wide-angle photographic lens disclosed in Fig. 6A by the light of the wavelengths of 486 lnm, 587 6 nm and 656. Fig. 6C is a schematic diagram of the astigmatic field curvature curve of the wide-angle photographic lens disclosed by the wavelength 6 ray # ray incident on Fig. 6a. Fig. 6D is a schematic diagram showing the distortion curve of the wide-angle photographic lens disclosed in Fig. 6A when the light having a wavelength of 587 6 nm is incident. The figure is a schematic structural view of a seventh embodiment of the wide-angle photographic lens according to the present invention. 46 201235731 Figure 7B is a longitudinal spherical aberration curve diagram of a wide-angle photographic lens with wavelengths of 486.1 nm, 587.6 nm, and 656.3 nm incident on the road of Figure 7A. Fig. 7C is a schematic diagram showing the astigmatic field curve of the wide-angle photographic lens disclosed by the light beam having a wavelength of 587 6 nm incident on the seventh image. The 7D image is a distortion curve of the light source with a wavelength of 587.6 nm incident on the photographic lens of FIG.广广 [Main component symbol description] 10,20,30,40,50,60,70 Wide viewing angle lens 100,200,300,400,500,600,700 Aperture 110.210.310.410.510.610.710 First lens 111.211.311.411.511.611.711 First lens side 112.212 .312.412.512.612.712 First lens image side 120, 220, 320, 420, 520, 620, 720 Second lens 121.221.321.421.521.621.721 Second lens side 122.222.322.422.522.622.722 Second lens image side 130, 230, 330, 430, 530, 630, 730 Third lens third lens side third Lens image side surface fourth lens fourth lens object side fourth lens image side surface fifth lens 131.231.331.431.531.631.731 132.232.332.432.532.632.732 140.240.340.440.540.640.740 141.241.341.441.541.641.741 142.242.342.442 .542.642.742 150,250,350,450,550,650,750 47 201235731 151,251,351,451,551,651,751 fifth lens side 152,252,352,452,552,652,752 fifth lens image side 160.260.360.460.560.660.760 sixth lens 161.261.361.461.561.661.761 sixth Lens object side 162.262.362.462.562.662.762 sixth lens image side 180, 280, 380, 4 80,580,680,780 Infrared filter 190.290.390.490.590.690.790 Imaging surface 191.291.391.491.591.691.791 Protective glass 192.292.392.492.592.692.792 Image sensing element

48

Claims (1)

201235731, the scope of the patent application: the type of the first lens is the first lens of the first lens, and the image of the first lens is along the object side to the image side of the optical axis. Side (four) (four); surface is convex - second lens with positive refractive power, the image side of the second lens is convex; a third lens; the first lens object side is concave, a positive refractive power of the fourth lens a fifth lens having a negative refractive power; and a sixth lens having a positive refractive power; wherein 'the wide-angle photographic lens has a focal length f, the second lens has a focal length f2', the sixth lens has The following formula is satisfied: 〇 &lt;f/f2&lt;i.〇; and 0.35 &lt;f/f6&lt;0.95. The wide-angle photographic lens of claim 1, wherein the image side of the sixth lens is convex. 3. The wide viewing lens of claim 2, wherein the image side of the fourth lens is a convex surface, and the object side of the fifth lens is a concave surface. 4. The wide-angle photographic lens of claim 3, further comprising an aperture on the optical axis, a mirror spacing Τι2 between the first lens and the second lens, the first lens image side and The aperture has a distance j)r4S between them and satisfies the following formula: Dr4S/T12&lt;0.4. 49 201235731 The Vision-Looking lens described in Item 3 of the syllabus, wherein on the light vehicle, the = and the third permeable paste have her-T23, lens: and the thickness f CT2' and satisfies the following formula :t23/CT2&lt;0.4. ^ The wide-angle photographic lens of claim 5, wherein the lens and the second lens door and the right, ~ 苐 厚 thick CT mirror 1 have - _ Tm lens has - 2 ' and the wide viewing angle The photographic lens satisfies the following formula: T23/CT2&lt;0.2 ο =2 f4 The wide-angle photographic lens of the ,, wherein the wide-angle photographic lens has a mirror and knocks the following formula: ^== side _„(4) And the side surface of the fifth lens has a curvature semi-transformation, and the j-viewing lens satisfies the following formula: G9 &lt; R bird &lt;17. The wide-angle photography as described in claim 5 has - focus, the first , mouth wide viewing angle mirror mirror masterpiece continues 6 &lt; 〇.7 focal length ☆, the following formula: 1 〇. ^ =! wide viewing angle photographic lens, which further includes an aperture, the lens and the second lens Between the image side of the second lens and the aperture, there is a distance below the formula: Dr4S/T12&lt;0.2. The wide-angle photographic lens described in the second item 7, wherein the wide-angle photographic lens is summer With-focal, the third lens has a focal length of $ and satisfies the following formula 〆, 5. 6. 7. 8. 9. 201235731 _i.〇&lt;f/f3&lt;〇. 12. The wide-angle photographic lens described in Item 1 of the item 7, wherein the wide-angle photographic lens has a side distance from the object of the five items, and has a material (four) and satisfies the underarm. Formula: -1.0&lt;R9/f&lt;-0.4. 13=Improve the tender _, the treasury (4) 侧面 侧面 侧 side &quot;有—(10) Radius R7, the image side of the lens has a radius of curvature... • and the following Formula: 〇 7 7+R 杂 7_R 〇 1 •. 14. The broad-angle photographic lens of claim 7, wherein the first lens has a refractive index Νι and satisfies the following formula: \&gt; 1.72. = The wide view _ lens described in Item 11, the _ _ _ 4 - the focal length f, the first lens has - the focal length d full phase under the formula: _ 〇 . 4 &lt; f / f 丨 < _ 〇]. 16. The wide viewing angle photographic lens of claim 3, wherein the fifth lens has a dispersion coefficient %, the sixth lens has a dispersion coefficient 乂, and satisfies the following formula: 28 &lt; V6 - v5 &lt; 45. 7. The wide viewing lens of claim 2, further comprising an image sensing component 'one of the diagonals of the effective photosensitive region of the image sensing component In the case of (5), the wide-angle photographic lens has a focal length f and satisfies the following formula: imgH/w2. 18. The wide-angle photographic lens of claim 17, wherein the wide-angle photographic lens has a maximum angle of view - The half HFW 1 satisfies the following formula: _v &gt; 75. I9. - A wide-angle photographic lens, which is sequentially included along the object side to the image side of an optical axis: a group of positive refractive power before, including: 51 201235731 a lens having an eight-negative refractive power; a side surface of the first lens on which the image side of the first lens is a concave surface; and a second lens having a positive refractive power, the object side of the second lens being concave The image side of the second lens _ (four); ', ', the concave and convex aperture; and a rear lens group, including: a third lens; a fourth lens having a positive refractive power; a fifth lens having a negative refractive power; Lu is a sixth lens with positive refractive power; on the axis of the light, the image side of the second lens has a distance from the gate of the aperture, and the first lens and the second lens have - Mirror ^ Tl2' the wide-view scale lens has - focal length f The front lens group having a - ^ focal length, and satisfies the following formula: 12 'Dr4S / T12 &lt;〇.4; and a square &lt; f / f12 &lt; 1.2. Lu 2〇. As described in π, item 19, the wide-view photographic camera has a lenticular lens with at least one positive refractive power. The wide viewing angle photographic lens of claim 20, wherein the image side of the fourth lens is a convex surface, the object side surface of the fifth lens is a concave surface, and the image (10) of the sixth lens is a convex surface. The wide-angle photographic lens of claim 21, wherein on the optical axis, the 52nd 201235731 two lens and the third lens have a mirror spacing DD 23, the second lens has a thickness CT, true The following formula .T23/CT is satisfied &lt;0.2. 23. The wide-angle photographic lens of claim 1 , further comprising an image sensing element 'half of a diagonal of an effective photosensitive area of the image sensing element is ImgH'; the wide-angle photographic lens has a focal length f, and The wide-angle photographic lens of claim 21, wherein the fifth lens has a dispersion coefficient %, the sixth lens has a dispersion coefficient V6, and satisfies the following formula: Formula: 28 &lt; V6 - V5 &lt; 45. The wide-angle photographic lens of claim 21, wherein the wide-angle photographic lens has a focal length f', the third lens has a focal length of 4, and satisfies the following formula: -1.0&lt;f/f3&lt;0. 53